Problem #10: Consider the following two elementary matrices. E1 = E2 = Suppose that A is a 2 x 2 matrix such that E2 E1 A =I. Find the matrix A. What is the value of a (i.e., the value in row 2, column 2 of the matrix A)? (A) 5 (B) 2 (C) 7 (D) 3 (E) 1 (F) 8 (G) 4 (H) 6

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A: Given that: A=21-3561 and B=14-4202-512

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A: NOTE: Refresh your page if you can't see any equations. . take x=-2

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